Example usage for java.awt.image PixelGrabber getWidth

Introduction

In this page you can find the example usage for java.awt.image PixelGrabber getWidth.

Prototype

public synchronized int getWidth() 

Source Link

Document

Get the width of the pixel buffer (after adjusting for image width).

Usage

From source file:Main.java

public static void main(String args[]) throws Exception {
    Image image = Toolkit.getDefaultToolkit().getImage("inFile.png");

    PixelGrabber grabber = new PixelGrabber(image, 0, 0, -1, -1, false);

    if (grabber.grabPixels()) {
        int width = grabber.getWidth();
        int height = grabber.getHeight();
        if (isGreyscaleImage(grabber)) {
            byte[] data = (byte[]) grabber.getPixels();
        } else {/*from w w  w .jav a2s .  c o  m*/
            int[] data = (int[]) grabber.getPixels();
        }
    }
}

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From source file:com.xebia.visualreview.PixelComparator.java

public static DiffReport processImage(File beforeFile, File afterFile, java.util.Map maskInfo,
        String compareSettings) {
    try {//from  w w w.jav  a  2 s.c  om
        int precision = getPrecision(compareSettings);

        PixelGrabber beforeGrab = grabImage(beforeFile);
        PixelGrabber afterGrab = grabImage(afterFile);

        int[] beforeData = null;
        int[] afterData = null;
        int beforeWidth = 0;
        int afterWidth = 0;
        int y1 = 0;
        int y2 = 0;

        if (beforeGrab.grabPixels()) {
            beforeWidth = beforeGrab.getWidth();
            y1 = beforeGrab.getHeight();
            beforeData = (int[]) beforeGrab.getPixels();
        }

        if (afterGrab.grabPixels()) {
            afterWidth = afterGrab.getWidth();
            y2 = afterGrab.getHeight();
            afterData = (int[]) afterGrab.getPixels();
        }

        int minX = Math.min(beforeWidth, afterWidth);
        int minY = Math.min(y1, y2);
        int diffWidth = Math.max(beforeWidth, afterWidth);
        int diffHeight = Math.max(y1, y2);
        int[] diffData = new int[diffWidth * diffHeight];
        int differentPixels = 0;
        boolean hasMask = (maskInfo != null);
        BufferedImage maskImage = generateMask(maskInfo, diffWidth, diffHeight);
        for (int y = 0; y < diffHeight; y++) {
            for (int x = 0; x < diffWidth; x++) {
                if (maskImage.getRGB(x, y) != DIFFCOLOUR) {
                    if (x >= minX || y >= minY || hasDifference(beforeData[y * beforeWidth + x],
                            afterData[y * afterWidth + x], precision)) {
                        diffData[y * diffWidth + x] = DIFFCOLOUR;
                        differentPixels++;
                    }
                }
            }
        }

        BufferedImage diffImage = new BufferedImage(diffWidth, diffHeight, BufferedImage.TYPE_INT_ARGB);
        diffImage.setRGB(0, 0, diffWidth, diffHeight, diffData, 0, diffWidth);

        DiffReport report = new DiffReport(beforeFile, afterFile, diffImage, differentPixels);
        if (hasMask) {
            report.setMaskImage(maskImage);
        }
        return report;

    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

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From source file:GrabandFadewithRasters.java

public void init() {
    URL url;//from   www.  jav  a  2  s.  c  o m
    try {
        url = new URL(imageURLString);
        originalImage = getImage(url);
    } catch (MalformedURLException me) {
        showStatus("Malformed URL: " + me.getMessage());
    }

    try {
        PixelGrabber grabber = new PixelGrabber(originalImage, 0, 0, -1, -1, true);
        if (grabber.grabPixels()) {
            width = grabber.getWidth();
            height = grabber.getHeight();
            originalPixelArray = (int[]) grabber.getPixels();

            mis = new MemoryImageSource(width, height, originalPixelArray, 0, width);
            mis.setAnimated(true);
            newImage = createImage(mis);
        } else {
            System.err.println("Grabbing Failed");
        }
    } catch (InterruptedException ie) {
        System.err.println("Pixel Grabbing Interrupted");
    }

    DataBufferInt dbi = new DataBufferInt(originalPixelArray, width * height);

    int bandmasks[] = { 0xff000000, 0x00ff0000, 0x0000ff00, 0x000000ff };
    SampleModel sm;
    sm = new SinglePixelPackedSampleModel(DataBuffer.TYPE_INT, width, height, bandmasks);

    raster = Raster.createWritableRaster(sm, dbi, null);
}

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From source file:GrabandFade.java

public void init() {
    URL url;//from w ww. ja  va  2  s . co  m
    try {
        // set imageURLString here
        url = new URL(imageURLString);
        originalImage = getImage(url);
    } catch (MalformedURLException me) {
        showStatus("Malformed URL: " + me.getMessage());
    }

    /*
     * Create PixelGrabber and use it to fill originalPixelArray with image
     * pixel data. This array will then by used by the MemoryImageSource.
     */
    try {
        PixelGrabber grabber = new PixelGrabber(originalImage, 0, 0, -1, -1, true);
        if (grabber.grabPixels()) {
            width = grabber.getWidth();
            height = grabber.getHeight();
            originalPixelArray = (int[]) grabber.getPixels();

            mis = new MemoryImageSource(width, height, originalPixelArray, 0, width);
            mis.setAnimated(true);
            newImage = createImage(mis);
        } else {
            System.err.println("Grabbing Failed");
        }
    } catch (InterruptedException ie) {
        System.err.println("Pixel Grabbing Interrupted");
    }
}

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